*SUPPORT*
IN: fep zup gazzer OUT: BLUE GREEN
IN: gazzer fep OUT: BLUE GREEN
IN: fep lug kiki lug kiki OUT: RED RED GREEN
IN: fep tufa blicket OUT: GREEN YELLOW
IN: blicket tufa gazzer OUT: YELLOW BLUE
IN: kiki tufa kiki OUT: RED RED
IN: fep OUT: GREEN
IN: gazzer OUT: BLUE
IN: blicket fep OUT: YELLOW GREEN
IN: gazzer tufa gazzer OUT: BLUE BLUE
IN: fep zup fep zup fep OUT: GREEN GREEN GREEN
IN: blicket zup fep zup blicket tufa gazzer OUT: YELLOW BLUE GREEN YELLOW
IN: kiki tufa blicket OUT: RED YELLOW
IN: kiki zup fep fep OUT: GREEN GREEN RED

*QUERY*
IN: gazzer fep kiki lug fep OUT: BLUE GREEN GREEN RED
IN: gazzer lug fep OUT: GREEN BLUE
IN: fep blicket OUT: GREEN YELLOW
IN: kiki OUT: RED
IN: gazzer fep zup gazzer fep tufa fep OUT: BLUE BLUE GREEN GREEN GREEN
IN: blicket lug blicket tufa blicket OUT: YELLOW YELLOW YELLOW
IN: fep lug kiki tufa fep OUT: RED GREEN GREEN
IN: fep lug blicket OUT: YELLOW GREEN
IN: gazzer zup gazzer OUT: BLUE BLUE
IN: gazzer tufa fep OUT: BLUE GREEN

*GRAMMAR*
gazzer -> BLUE 
 fep -> GREEN 
 kiki -> RED 
 blicket -> YELLOW 
 u1 zup x1 -> [x1] [u1] 
 u1 tufa u2 -> [u1] [u2] 
 u1 lug x1 -> [x1] [u1] 
 u1 x1 -> [u1] [x1] 
 